Removal of a DPF will almost invariably contravene these requirements.įrom February 2014 the inspection of the exhaust system carried out during the MoT test will include a visual check for the presence of a DPF. Although it is not illegal to remove a DPF filter form your vehicle, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Please note that we only offer DPF solutions for Off-Road Usage only. When finished, the DPF still looks to be in situ with all sensors operational just not DPF trap and no regeneration problems. What is required is that the DPF filter is removed from the centre of the exhaust core ensuring all sensors are still in place and functioning. Our DPF remap in basic switches off the functionality of the DPF ensuring it never attempts to regenerate again. With the DPF not being part of an MOT emission test it is not a requirement for it to ‘function’ as a DPF. There is only so many times a DPF can regenerate before the compacted soot reaches a critical saturation level at which point DPF replacement is imminent. The problem many are finding is that any driving other than motorway use will cause the DPF to clog up and force it to regenerate. Modern turbo diesel management systems all accommodate the use of a ‘diesel particulate filter’ as it has become mandatory as part of Euro Emission controls.
Dpf off service login software#
Our DPF delete software will ensure that you have trouble free motoring after the DPF removal and give you piece of mind that your vehicle will not go into limp mode due to DPF regeneration ever again. Is your DPF causing you poor fuel economy?Ĭeltic Tuning are genuine software developers and as such have unrivalled knowledge and experience in DPF Removal from modern ECU’s.
Once the DPF reaches a certain level of ‘Saturation’ it performs a regeneration cycle to burn off the particulate matter inside the filter.Ī car which is primarily used for motorway use will generally run at warmer temperatures and therefore produce far less particulate matter than one used in a stop/start city environment. By forcing the exhaust gases through the walls between the channels of the DPF, the particulate matter is deposited on the walls, so reducing the amount of air pollution. Inside is a complex honeycomb ceramic structure designed to filter the exhaust gases while minimising flow reduction (which would otherwise limit performance). The DPF looks similar to a traditional exhaust silencer, but is mounted close to the engine. Standards aim to deliver an 80% reduction in diesel particulate (soot) emissions but as owners are finding out with great expense, the technology is not without its problems.
In fact, many cars registered before 2009 will have had one fitted too in anticipation of the change in standards. The exhaust emissions standards for new cars have effectively required fitment of a DPF in the exhaust of diesel cars since 2009 when the 'Euro 5' standard came into force. BACKGROUND TO DIESEL PARTICULATE FILTERS (DPF)
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